Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary services stage 3; Sub-part 20: Discreet Listening (DL)
STANDARD published on 5.4.2012
Designation standards: ETSI EN 300392-12-20-V1.2.1
Publication date standards: 5.4.2012
The number of pages: 64
Approximate weight : 192 g (0.42 lbs)
Country: European technical standard
Category: Technical standards ETSI